/**
 ******************************************************************************
 *
 * @file       uavgadgetinstancemanager.h
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
 * @addtogroup GCSPlugins GCS Plugins
 * @{
 * @addtogroup CorePlugin Core Plugin
 * @{
 * @brief The Core GCS plugin
 *****************************************************************************/
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef UAVGADGETINSTANCEMANAGER_H
#define UAVGADGETINSTANCEMANAGER_H

#include <QObject>
#include <QSettings>
#include <QtCore/QMap>
#include <QtCore/QStringList>
#include <QIcon>
#include "core_global.h"
#include "uavconfiginfo.h"

namespace ExtensionSystem {
class PluginManager;
}

namespace Core {
namespace Internal {
class SettingsDialog;
}

class IUAVGadget;
class IUAVGadgetConfiguration;
class IOptionsPage;
class IUAVGadgetFactory;

class CORE_EXPORT UAVGadgetInstanceManager : public QObject {
    Q_OBJECT
public:
    enum DeleteStatus { OK, KO_ACTIVE, KO_LONE };

    explicit UAVGadgetInstanceManager(QObject *parent = 0);
    ~UAVGadgetInstanceManager();

    void readSettings(QSettings *qs);
    void saveSettings(QSettings *qs);

    IUAVGadget *createGadget(QString classId, QWidget *parent, bool loadDefaultConfiguration = true);
    void removeGadget(IUAVGadget *gadget);
    void removeAllGadgets();

    bool isConfigurationActive(IUAVGadgetConfiguration *config);
    DeleteStatus canDeleteConfiguration(IUAVGadgetConfiguration *config);
    void deleteConfiguration(IUAVGadgetConfiguration *config);
    void cloneConfiguration(IUAVGadgetConfiguration *config);
    void applyChanges(IUAVGadgetConfiguration *config);
    void configurationNameEdited(QString text, bool hasText = true);

    QStringList classIds() const
    {
        return m_classIdNameMap.keys();
    }

    QStringList configurationNames(QString classId) const;
    QString gadgetName(QString classId) const;
    QIcon gadgetIcon(QString classId) const;

signals:
    void configurationChanged(IUAVGadgetConfiguration *config);
    void configurationAdded(IUAVGadgetConfiguration *config);
    void configurationToBeDeleted(IUAVGadgetConfiguration *config);
    void configurationNameChanged(IUAVGadgetConfiguration *config, QString oldName, QString newName);

public slots:
    void settingsDialogShown(Core::Internal::SettingsDialog *settingsDialog);
    void settingsDialogRemoved();

private:
    QList<IUAVGadget *> m_gadgetInstances;
    QList<IUAVGadgetFactory *> m_factories;
    QList<IUAVGadgetConfiguration *> m_configurations;
    QList<IOptionsPage *> m_optionsPages;
    QMap<QString, QString> m_classIdNameMap;
    QMap<QString, QIcon> m_classIdIconMap;
    QMap<QString, QStringList> m_takenNames;
    QList<IUAVGadgetConfiguration *> m_provisionalConfigs;
    QList<IUAVGadgetConfiguration *> m_provisionalDeletes;
    QList<IOptionsPage *> m_provisionalOptionsPages;
    Core::Internal::SettingsDialog *m_settingsDialog;
    ExtensionSystem::PluginManager *m_pm;

    IUAVGadgetFactory *factory(QString classId) const;

    void createOptionsPages();

    QList<IUAVGadgetConfiguration *> *configurations(QString classId) const;
    QList<IUAVGadgetConfiguration *> *provisionalConfigurations(QString classId) const;

    QString suggestName(QString classId, QString name);

    int indexForConfig(QList<IUAVGadgetConfiguration *> configurations, QString classId, QString configName);

    void readConfigs_1_1_0(QSettings *qs);
    void readConfigs_1_2_0(QSettings *qs);
};
} // namespace Core

#endif // UAVGADGETINSTANCEMANAGER_H
